Lynda Arkoub-Djermoune , Salima Bellili , Lamia Khenouce , Farida Benmeziane , Khodir Madani , Lila Boulekbache-Makhlouf (2019). Effect of Domestic Cooking on Physicochemical Parameters, Phytochemicals and Antioxidant Properties of Algerian Tomato (Solanum Lycopersicum L. Var. Marmande). Journal of Food Technology Research, 6(1): 1-17. DOI: 10.18488/journal.58.2019.61.1.17
Most of the vegetables are consumed after being cooked. Tomatoes are widely consumed either raw or after processing and can provide a significant proportion of the total antioxidants in the diet. This study was performed to investigate the influence of the traditional cooking methods of Algerian people (frying, griddling and baking) on the physicochemical properties (pH, moisture, acidity, Brix, total sugar, ash and non enzymatic browning index), phytochemicals contents (phenolics, flavonoids, anthocyanins, flavonols vitamin C, carotenoids and lycopene) and the antioxidant activity of tomato (S. lycopersicum) cultivated in Algeria. Cooking treatment affect positively their physicochemical properties (pH, acidity, Brix, total sugar, ash and non-enzymatic browning index) except the moisture content which decreases significantly. After cooking, the number of phenolics, flavonoids and anthocyanins increase significantly, nevertheless vitamin C, carotenoids and lycopene contents decrease for all cooked samples. Finally, DPPH and ABTS free radicals scavenging activities increased in cooked tomato extracts, while a slight decrease was recorded in ferric reducing power (FRP) due to the reduction of vitamin C contents. Consequently, the antioxidant activity of tomato depends on the cooking procedure and griddling, frying seems to be the best cooking way that enhances its antioxidant activity.
This study documents for the first time to determine the influence of the traditional cooking methods of Algerian people (frying, griddling and baking) on the physicochemical properties, the phytochemicals contents and the antioxidant activity (DPPH, ABTS and FRP) of Algerian tomato (S. lycopersicum var. Marmande) used in different food preparation.
Muhammad Waseem Birmani , Aamir Nawab , Muhammad Waseem Ghani , Guanghui Li , Mei Xiao , Lilong An (2019). A Review: Role of Inulin in Animal Nutrition. Journal of Food Technology Research, 6(1): 18-27. DOI: 10.18488/journal.58.2019.61.18.27
Inulin is an oligosaccharide which can be used in the animal diet as a functional fiber. Among other natural plant-derived fructans, inulin has so many beneficial effects on the immune system, lipid metabolism, and helps in mineral absorption and has the ability to balance the intestinal microbiota of animals. Increasing global meat demand and ban of antibiotics as growth promoters in animal feed due to its residual effects in human food are the factors driving the growth of inulin as a feed additive. As feed additive in animal feed inulin has a positive effect on intestinal health and have the potential to improve the immunity of livestock and poultry. From few years, inulin has been making headlines in animal nutrition, but it remains a little-known feed ingredient and is even less used in the feed industry. Therefore, the objective of this review is to provide recently applied knowledge to the researchers about the general beneficial functions of inulin in the animal body and its application in the animal feed industry.
Present study has much contribution of inulin use in animal nutrition. Before that lot of studies available on inulin in human. In our study we focus on inulin use in animal diet. It is considered a functional plant-based ingredient that effectively boosts digestion and other processes. From this study scientists and nutritionists get idea to use inulin in livestock and other animal feed.
Effect of Tuber Sections, Heat Treatment and Rehydration with Process Chemicals on the Physicochemical Properties of Sweet Potato (Ipomoea Batatas L. (Lam)) Flour
Iheagwara, M. C. , Chibuzo, I. H. , Ibeabuchi, J. C. (2019). Effect of Tuber Sections, Heat Treatment and Rehydration with Process Chemicals on the Physicochemical Properties of Sweet Potato (Ipomoea Batatas L. (Lam)) Flour. Journal of Food Technology Research, 6(1): 28-36. DOI: 10.18488/journal.58.2019.61.28.36
The impact of tuber sections and some processing conditions on the physicochemical properties of sweet potato (Ipomoea batatas L. (Lam)) flour was investigated. Flour samples were generated as fresh, boiled and steamed from the head, middle, tail and the whole tuber. All the samples were subjected to some physicochemical analyses such as swelling index (SI), water absorption capacity (WAC), oil absorption capacity (OAC), total soluble solids (TSS), blue value index (BVI), gelling point temperature (GPT), boiling point temperature (BPT) and pH in order to assess the effect of tuber section, heat treatment and post-milling rehydration properties of flour in different steeping solution of varying concentrations. The result showed that the proximate composition of the flour from the tuber sections and the whole did not differ significantly (p < 0.05). The influence of steeping solution type (SST) was not significant (p > 0.05) on WAC, SI (boiled and steamed) and TSS (raw) while steeping solution concentration (SSC) effected significant variations (p < 0.05) in all the tested parameters of the flour. Also, the parameter analytical temperature (PAT) caused significant differences (p < 0.05) in all the test parameters.
This study is one of the very few studies which have investigated the effect of tuber sections and processing conditions on the physicochemical properties of sweet potato (Ipomoea batatas L. (Lam)) flour. The investigation showed that the test variables had significant effects on the physicochemical properties of sweet potato flour.